Hand-punch.



Patented Mar. 5, |90l. J. T. CARMDDY.

No. 669,23l.

HAND PU NCH.

(Appliwmn med Aug. 1o, 190m (llo lodel.)

YH: nomus Pneus cn, Ma'murno., wAsHlNnroN, a c.

Trice.

JOHN T. CARMODY, OF CEDAR RAPIDS, IOWA.

HAND-PU NCH.

SPECIFICATION forming part of Letters Patent N o. 669,231, dated March5, 1901. Application filed August l0, 1900. Serial No. 26,486. (Nomodel.)

T @ZZ 'LU/tom. it may concern:

Beit known that I, JOHN T. OARMODY, a citizen of the United States,residing at Cedar Rapids, in the county of Linn and State of Iowa, haveinvented certain new and useful Improvements in Hand-Punches; and I dohereby declare the following to be a full, clear, andA exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

The object of this invention is to produce a simple and efcienthand-punch for punchin g se mici roles, and used more particularly innicking the leaves of indexes and the like.

The nature of the invention will appear by reference to the accompanyingdrawings and in the description and claims following.

In the drawings, Figure l is a side view of a punch embodying myinvention, and Fig. 2

is a mid-section of the same in the same plane as Fig. l.

Similar letters of reference indicate corresponding` parts.

A is the body of the punch, which is extended to form a handle at A.Through the head A2, which has a throat A3, is bored a .holeperpendicular to the handle, and in this is litted a tubular cutter andguide B. The front part of this tube is notched at B', and the lowerinclined portion of the notched part is brought to a cutting edge, asshown at B2. The side of the tube at B3 serves as a stop for the sheetof paper or other material punched. In the upper portion of this tube ismounted a plunger O, slotted at O/ to receive the rounded end of an armD', forming a part of a handle or lever D, pivoted in the body A of thepunch, which is chambered at A4 to receive it. The back side of the tubeis also slotted at B'l to allow for the movement of the lever. To thelower end of the plunger is attached by a screw E a circular cutter F,which is siniplya disk countersunk and sharpened on the lower side. Theupper portion of the plunger extends above the head A2, and to its upperend is screwed a cap G. Between this cap and the head is mounted acoil-spring H, which serves to restore the parts to the idle positionshown. The plunger is bored out at the upper end to reduce its weight;but this feature is not of special importance.

The tube B is clamped in the punch-head by a screw I, the lower jaw A5being split for that purpose. A screw J serves as a pivot for the leverD. The internal cutter F may be quickly removed for sharpening orreplacing by means of a screw-driver and with the other parts all inposition. By loosening the clampscrew I and removing the pivot-screw Jthe whole punch may be taken'apart in a moment.

In practice the punch has been found to be a very practical, efficient,and easily-operated implement for the purpose for which it is intended.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a hand-punch, the combination with a suitable body and lever, of aplunger provided with a cutter at the lower end, and a tubular guideforming a long continuous bearing therefor notched on one side to form acutting-lip coacting with the plunger-cutter, substantially asdescribed.

2. In a hand-punch, a body, a plunger and means to operate the same, acutting-disk on the end of the plunger, a tubular guide forming a longcontinuous bearing for said plunger, said guide being notched on oneside, one edge of said notch being oblique to the length of the tube andsharpened to coact with the effective portion of the cutting edge ofsaid cutting-disk, as and for the purpose described.

3. In a hand-punch, the combination of the punch body substantially asdescribed, a hand-lever pivoted therein, a slotted plunger engaging theinner arm of said lever, and having a cutter or die at its lower end, atubular guide for said plunger, slotted to admit the hand-lever, notchedat one side to form a cutter opposed to that on the plunger, and clampedin the lower jaw of the punch-body, a cap at the upper end of theplunger, and a spring between it and the punch-head, substantially asand for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.i

" JOHN T. OARMODY. Witnesses:

J. M. Sr. JOHN, JOHN O. HEALD.

